package com.itheima.demo.mapper;

import com.itheima.demo.entity.Dept;
import com.itheima.demo.vo.DeptV0;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {

    @Select("select id, name, create_time, update_time from dept")
    //1. 别名 @Select("select id, name, create_time as createTime, update_time as updateTime from dept")
    public List<DeptV0> selectAll();

    @Delete("delete from dept where id= #{id}")
    void deleById(Integer id);

    @Insert("insert into dept(name, create_time, update_time)values(#{name}, #{createTime}, #{updateTime})")
    void insert (Dept dept);

    @Select("SELECT *FROM dept where id = #{id}")
    Dept selectById(Integer id);

   //@Update("update dept set name=#{name},update_time=#{updateTime} where id = #{id}")
    void  update(Dept dept);

}

